the oemizer program seems to work great for setting personal settings, email etc...but not well at all for adding registry/apps...at least not for me.
personally, i have been using the info found here:
http://wiki.xda-developers.com/index...age%20Tutorial
once you get to the "
Converting Cabs to Packages with Ervius Package Creator" is where you've hit the real gold mine. it is GREAT.
good luck.
sorry for last post where there was nothing after the "here:" lol...but be sure to check that out!